Rubblewebs

THESE CODES ARE PROVIDED FOR AN EXAMPLE OF HOW TO USE IMAGEMAGICK WITH PHP. CARE SHOULD BE TAKEN WHEN ACCEPTING USER INPUT.

I TAKE NO RESPONSABILTY FOR ANY PROBLEMS THAT MAY OCCURE WHEN USING ANY OF THIS CODE.

IT IS UP TO YOU TO SECURE THE CODE AND VALIDATE USER INPUT.

Imagemagick operators page 3

Border

Surround the image with a border of color.

Border example 

$cmd = "$input -bordercolor NavajoWhite ". 
"-border 10x10"; 
exec("convert $cmd border.jpg");

( The border increases the size of the image by 2 x the width of the border. The top and bottom border size can be different to the left and right. )

Border color

Set the border color.

Border color example 

$cmd = "$input -bordercolor Orange -border 10x5"; 
exec("convert $cmd bordercolor.jpg");

Border width

The width of the border.

Depreciated use -border

Brightness contrast

Adjust the brightness and/or contrast of the image

Brightness contrast example 

$cmd = "$input -brightness-contrast 10";   
exec("convert $cmd brightness-contrast.jpg");

Cache

Depreciated see -limit

Caption

Assign a caption to an image.

Caption example

Another Caption example 

$cmd = "-size 213x160 -background NavajoWhite ". 
"-fill black -gravity center caption:\"Caption\" "; 
exec("convert $cmd caption.jpg");

$size = getimagesize( $input ); 
$cmd = " $input ( -size {$size[0]}x30". 
" -background black -fill white". 
" -pointsize 16 -gravity center". 
" caption:\"Caption\" -flatten ) -append "; 
exec("convert $cmd caption_size.jpg");

( The font size is automaticaly sellected to fit the width. )

CDL

Color correct with a color decision list.

CDL example 

$cmd = "$input -cdl images/cdl.xml ";  
exec("convert $cmd cdl.jpg");

Channel

Work on the specified image channel

Channel example 

$cmd = "$input -channel RB -fx 0 "; 
exec("convert $cmd channel.jpg");

( Specify those image color channels to which subsequent operators are limited. In this case setting red and blue channels to zero )

Charcol

Simulate a charcoal drawing.

Charcol example 

$cmd = "$input -charcoal 1";
exec("convert $cmd charcoal.jpg");

Chop

Remove pixels from the interior of an image.

Chop example 

$cmd = "$input -gravity center -chop 20x20 "; 
exec("convert $cmd chop.jpg");

( The image size is reduced by the amount of pixels removed from the image. )

Clamp

Restrict image colors from 0 to the quantum depth.

Clamp example 

$cmd = "$input -clamp -colors 50 "; 
exec("convert $cmd clamp.jpg");

Clip

Apply the clipping path if one is present.

Clip example 

$cmd = "$input6 -clip-path -negate "; 
exec("convert $cmd clip.jpg");

Clip mask

Clip the image as defined by this mask.

More information to follow.

Clip path

Clip along a named path from the 8BImageMagick profile.

Clip path example 

$cmd = "$input6 -clip-path -colorspace Gray "; 
exec("convert $cmd clip_path.jpg");